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Contractors are expected to continue electrical work, as well as construction of a retaining wall on Pullman Street between MacArthur Boulevard and Dyer Road. In addition, two retaining walls are being constructed along northbound SR-55 near the Edinger Avenue bridge.

This work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.

WHAT:

Crews will demolish the concrete barrier along the east side of the SR-55 bridge over MacArthur Boulevard to accommodate the freeway improvement project.

This work will require closing MacArthur under the freeway as well as the northbound and southbound loop on-ramps. The off-ramps and the straight on-ramps will remain open.

WHEN:

9 p.m. to 5 a.m. nightly, beginning as early as Monday, Jan. 23, to Wednesday, Jan. 25.  

This work may be loud. The schedule is subject to change due to inclement weather or unforeseen operational issues.

DETOURS:

Motorists will be detoured to use Red Hill Avenue, Dyer Road, and Main Street. For more information, visit the interactive Closures and Detours Map.

Upcoming Activities:

Once demolition is complete, crews are expected to begin pile driving to prepare for the new bridge foundation in mid-February.

This week's Focus on 55 business spotlight is Foothill Regional Medical Center, a fully accredited acute care hospital offering quality, compassionate and accessible care. They specialize in general and specialized surgery, orthopedics, rehabilitation, radiology, and critical care.

14662 Newport Ave., Tustin, CA 92780

714-619-7700

FoothillRegionalCares@AltaHospitals.com

foothillregionalmedicalcenter.com

To learn more about OCTA's Focus on 55 Program, including official rules and eligibility, visit octa.net/Focuson55 or click here to enroll your business today.

OCTA, in cooperation with Caltrans, is improving 4 miles of SR-55 between I-405 and I-5. The project will improve traffic flow and reduce travel time by adding one regular lane and one carpool lane in each direction. Also, the project will add merge lanes between several interchanges and stripe carpool lanes for continuous access, augmenting safety on the freeway by making merging easier. These enhancements are expected to create a better, smoother driving experience for motorists.